Chemistry, 29.07.2019 21:10 Mexicochan
Copper exists naturally as two isotopes copper-63 with a mass of 62.93 amu and copper-65 with a mass of 64.93 amu. the average mass of copper is 63.55 amu. what is the approximate abundance of copper-63 in nature?
Answers: 1
Chemistry, 21.06.2019 19:30
Which answer lists the fundamental forces in order from strongest to weakest
Answers: 1
Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
Answers: 1
Chemistry, 22.06.2019 04:30
Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?
Answers: 2
Chemistry, 22.06.2019 05:00
What forms when chemical reactions combine pollution with sunlight?
Answers: 1
Copper exists naturally as two isotopes copper-63 with a mass of 62.93 amu and copper-65 with a mass...
Mathematics, 02.03.2020 17:47
Computers and Technology, 02.03.2020 17:47
Computers and Technology, 02.03.2020 17:47
Computers and Technology, 02.03.2020 17:47
Social Studies, 02.03.2020 17:48
Mathematics, 02.03.2020 17:48